Also includes some other things like changed styling and whatnot; it's not really "for publication" and some tweaking may be required, but here it is. Load it manually via about:debugging.
You need to load a post by clicking on the date, and then you can click "bozo" or "block": the "bozo" just marks the post as someone being a "bozo" but doesn't block it. This is useful because everyone can have a bad day or whatever, and that's fine. It's people who consistently seem to be having "bad days" that are the problem – unfortunately there's a small group of highly prolific posters that I find consistently unpleasant, and with just ~20-30 people hidden like this (some of whom really ought to be banned IMHO) I found HN becomes a significantly better experience.
The main problem I have with this is that I can no longer flag or rebuff their posts (whichever may apply), so these people become the proverbial "missing stairs" if everyone starts doing it :-/
I do like the distinguishing factor between marking a commenter and blocking. I don't like (and think it's dangerous) to feel like blocking any old bad commenter over one comment is the go-to option, so having a way to self-warn myself if this is the same user before going nuclear is a nice touch.
>The main problem I have with this is that I can no longer flag or rebuff their posts (whichever may apply), so these people become the proverbial "missing stairs" if everyone starts doing it :-/
True, it is indeed a macro issue. But at the same time I feel it's a micro problem and there's a point where I need to look out for myself as opposed to the site at large. Let sleeping dogs lie, for now.